Podcast
Questions and Answers
Which nerve supplies most of the muscles of the soft palate?
Which nerve supplies most of the muscles of the soft palate?
Which muscle of the soft palate is an exception in terms of its motor nerve supply?
Which muscle of the soft palate is an exception in terms of its motor nerve supply?
A lesion in which cranial nerve can result in difficulty in swallowing due to impaired soft palate function?
A lesion in which cranial nerve can result in difficulty in swallowing due to impaired soft palate function?
Which of the following structures is NOT directly innervated by the vagus nerve?
Which of the following structures is NOT directly innervated by the vagus nerve?
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In a patient with a tongue deviation to the left upon protrusion, which cranial nerve lesion could also potentially affect the soft palate function?
In a patient with a tongue deviation to the left upon protrusion, which cranial nerve lesion could also potentially affect the soft palate function?
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Which type of protein structure is defined by the sequence of amino acids?
Which type of protein structure is defined by the sequence of amino acids?
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Which secondary structure of proteins is characterized by hydrogen bonds forming between different parts of a polypeptide chain, creating a zigzagging pattern?
Which secondary structure of proteins is characterized by hydrogen bonds forming between different parts of a polypeptide chain, creating a zigzagging pattern?
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Which type of secondary structure results in a right-handed coil or spiral conformation of the polypeptide chain?
Which type of secondary structure results in a right-handed coil or spiral conformation of the polypeptide chain?
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Which level of protein structure involves the overall three-dimensional shape of a single polypeptide chain, including interactions such as hydrogen bonds, ionic bonds, and hydrophobic interactions?
Which level of protein structure involves the overall three-dimensional shape of a single polypeptide chain, including interactions such as hydrogen bonds, ionic bonds, and hydrophobic interactions?
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Which level of protein structure involves the assembly of multiple polypeptide chains into a functional protein complex?
Which level of protein structure involves the assembly of multiple polypeptide chains into a functional protein complex?
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Study Notes
Soft Palate Muscles
- Muscles of soft palate are supplied by vagus nerve, except tensor palati which is supplied by the mandibular nerve.
- Lesion of the vagus nerve causes the uvula to deviate to the opposite side.
Cleft Lip and Palate
- A cleft refers to a gap or split in the upper lip or palate.
Tongue Anatomy
- The hypoglossal nerve is responsible for the tongue's motor function.
- Trauma to the lower jaw (mandible) may cause a fracture that injures the hypoglossal nerve, resulting in paralysis and eventual shrinking of one side of the tongue.
Protein Structure
Tertiary Structure
- Describes the three-dimensional structure of proteins.
- α-helices and β-sheets of the secondary structure are folded (arranged) in domains.
- A protein molecule may contain one or more domains.
- These domains have a shape suitable for a protein function, such as a catalytic site of an enzyme or binding a receptor.
Quaternary Structure
- Refers to the assembly of several protein units together.
Secondary Structure
- Results from folding of polypeptides into structures such as α-helix.
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Description
Test your knowledge on how a lesion of the vagus nerve can cause deviation of the uvula to the opposite side. Explore the clinical relevance of cleft lip and cleft palate conditions.
